Typewriting machine



TYPEWRH I NG MACHINE. APPLICATION FILED MAR-11,1921.

. ,417,472. I Patented May'23,-1922.

z SHEETS-SHEET I. /?0

A TTORNE Y.

C. W; MARSH,

TYPEWRITING MACHINE. APPLICATION mu) MAELHII. 1921.

Patented May 23,1922.

TSHEETS-SHEET 2. a 4

A TTORNE Y.

Patented May 23, 1922 I SHEETS-SHEET 3.

AT'ToRNEv C. W. MARSH.

TYPEWRITING MACHINE.

AFPLlCATION FILED MAR. 1 1. 19-21.

1,417,479. Patented May23,1922.

INVE

ATTORNEY.

I w MARSH TYFEWRITING MACHINE.

APPLICATION FILED MAR. II I92I.

Patente i May 23, 1922 I SHEETS SHEET 5.,

C. W. MARSH.

' TYPEWRITING MACEHNE.- APPLICATION mm mm. H. l92l.

Patnted May 23, 1922.

7 SHEETS-SHEET 6.

F a. ll 93 "ATTORNEY UNITED STATES CLIFFORD MARSH, OF BRIDG-EPORT, CONNECTICUT.

TYPEWRITING MACHINE.

Specification of-Letters Patent. Patented 1VIa,j1 23, 1922,

Application filed March 11, 1921. Serial No. 451,611. i

thereof, as, for example, in making out insurance policies by filling in the necessary data in spaces provided in printed blanks, the original of each policy being delivered to the party insured, and one or more copies thereof being preserved in the files of the insurance company.

In work of this character it is customary to provide a considerable-number of difierent forms to correspond with the different kinds-of policies written, a separate form being used for each type of policy, and each individual policy being prepared by writing into the proper form the appropriate data in accordance with the facts. The usual'op eration involves selecting from the filing case in which the form blanks are stored, the required number of copies of the proper form blank assembling these blanks with the necessary number of carbon sheets, and inserting and positioning the assembled blanks and carbon sheets in the typewriter, all of which must be done before the work of filling in the forms is commenced, thereby consuming, in preparationfor the work, a considerable amount of time in proportion to the time needed for the actual making out of the forms. I

The present invention has for its primary object the provision of means whereby this loss of time may be greatly reduced and the required number of duplicate copies prepared in accordance with any desired stock form, with a minimum expenditure of time and effort.

A more particular object of the invention is to provide means whereby a considerable stock of blanks for each of a number of different forms may be conveniently stored and rendered quickly available for the purpose of preparing the required number of copies of a policy or-other document from any said forms.

Further objects of the invention are to provide means for facilitating" the introduction of the required blanks into the proper writand for eliminating the necessity of excessive care on the part of the operator in order 'to'insure the proper manipulation and operation of the mechanism. I

With the foregoing and other objects in view I have devised the novel mechanism which .I will now describe, reference being had to the accompanying drawing, in which: F 1g. 1 is a side elevation of the complete apparatus, the side wall of the cabinet being partly broken away to show the interior construction and arrangement.

F 1g. 2 is a vertical section taken substantially on the line 21-2 Fig. l.

Fig. 3 is a horizontal section taken substantially onthe line 3-3, F ig. 1.

Fig. 4 is a detail elevation, looking from the line 44:, Fig. 2, of the mechanism for locking the elevator, one of the carriers being shown in section. v

Fig. 5 is a perspective view of the typewriter, showing one of the carriers inwriting position therein.

1g. 6 is a similar view with the. carrier removed.

Fig. 7 is an enlarged plan view of the rear portion of the typewriter, showing the construction of the carriage.

Fig. 8'is a detail sectional view, taken substantlally on the line 8-8, Fig. 7, of the locking device for the typewriter carriage.

ig. 9 is a plan V ew, Fig. 10 a side elevation, and; Fig. 11- a front elevation of one of the carriers.

Fig. 12is an enlarged fragmentary plan vlew, partly in section, showlng the mecha-' nism for feeding the carbon strips or webs.

Fig. 13 is a detail perspective view of the rear end of the carrier.

Fig. 14 is a detail side elevation of the front end of the carrier, looking from the right in Fig. 11.

F i 15 is a detail elevation, as viewed from the line 15-45, Fig. 12, of the rollers for feeding the carbon strips. I I

Fig. 16 is a detail section taken substantially on the line 16, Fi 15. Fig. 17 is a longitudinal vertical section, taken substantially on the line 17-17, Fig. 9, of the carrier, showing the parts in operative position.

Fig. 18 is a similar view, showing the feed rollers separated and the actuating mechanism for the reels disconnected from the latter.

Fig. 19 is a transverse section taken sub stantially on the line 19-19, Fig. 17.

Fig. 20 is a detail section, on the line 20-20, Fig. 19, ofthe' means for frictionally connecting the reels with their operating gears.

Fig; 21 is an enlarged detail section on the line 21-21, Fig. 9.

Fig. 22 is a considerably enlarged detail section of the platen, showing the work sheets, transfer webs and guard strips.

Referring to Figs. 1, 5, 6 and '7, 25 de notes a typewriting machine having the usual type keys 26, shift keys 27, space bar 28 type bars 29, and ribbon feed mechanism 30. Said typewriting machine may, in general, be of any usual or well known form with the exceptionot the carriage and the supporting means therefor, which are of special construction as will now be described.

31 denotes brackets bolted or otherwise secured to the rear of the typewriter frame and supporting parallel front and rear rails 32 and 33 upon which the rearwardly. elongated carriage is supported, as by rollers 34, for travel transversely of the typewriter frame. Although the carriage and its sup-v porting means are of novel construction, the means for operating said carriage may be of well known form comprising the usual tension mechanism 35, 7 and escapement mechanism 36, the latter including a pinion (not shown) on the typewriter frame, said pinion engaging a rack 37 on the carriage, as will be familiar to those skilled in the art a without illustration or description in detail.

The escapement mechanism is, as usual, manually operable to release the carriage by means of an escapement release bar 39 operable by finger leve'rslO whenever it is desired to move'the carriage by hand. Said carriage compr ses rectangular frame formed of rearwardly extending rails 41 and transverse front and rear bars 42 and 43,

respectively, connecting the rails 41 and car rying the rollers 34. The travel of the car riage in opposite directions is limited by engagement of a lug 44 carried by the bar 42 with studs 45 on the rail 32. In View of the adapted for engagement by the palm of the operators hand'in order to force the carriage back against the pull of the tension mechanism 35.

The carriage above described is adapted to receive any one of a plurality of interchangeable carriers 48 which are identical in construction. Each ,of the said carriers comprises a shallow, trough-like frame 49 (see particularly Figs. 17, 18 and 19) reinforced at its rear end by a cross member 50 and at its forward end by an upper transverse bar 51', said member and bar being provided with handles 52 and 53 by which the carrier may be readily liftedand other wise manipulated. Each of the carriers 48 further comprises a platen 54 adapted, when the carrier is inoperative or writing position in the carriage, to receive the impression of the type on the type bars 29 (see partlicularly Fig. 21) and carries a suitable number of -work sheet reels 55 which c'arry the work sheets or blank forms which are to be filled out. Said blank forms are printed in' series on continuous paper webs 56 which are wound on the reels and are of considerable length, the webs carried by all of the reels 55 of the same carrier being similarly printed to constitute like forms, and the several carriers being provided with differently printed webs in accordance with the different forms I in use, it being understood that a number of carriers corresponding to the number of forms used will be employed. As hereafter more fully described, means are provided for feeding the webs 56 from the several reels 55 over the platen 55k in superposed relation and for passing between said webs a suitable number of strips or webs 57 of carbon paper or equivalent transfer or manifolding. mate rial, whereby all of said webs may receive the same impressions from the type-bars 29 during their passage overtlie platen.

(The carriage as above described is of special construction and has a function different than that of the usual typewriter carriage. It is] means by which the carrier units, comprising the platen, work sheets and carbon paper or transfer material, are removably connected with the reciprocating mechanism of the typewriter which includes the tension and escapement mechanism.

Said means, while described as a carriage and illustrated as a frame, may be of any construction adapted to allow the operator to quickly and easily brin the carrier units into connection with and 'dis jconnect them from said reciprocatingmechanism, thereby making the carrier utiits freely interchangeable and difi'erentia'ing from the practic'ally permanent connectlon. now employed.

The connection or relation between the units and the reciprocating mechanism is such that the units may be disconnected and removed therefrom without breakin down from the typewriter and another placed in position thereon without breaking down any part of the typewriter or carrier, orchanging either one in any way.

Each carrier frame 49 is securedmto and supported by a pair of cross bars 58 provided at their ends with rollers 59 (see Figs. 9 and 10) adapted. to travel on the carriage rails 41, said bars 49 having end carrier 48 in operative position in the typewriter carriage, the lugs 60 of the carrier in question are dropped through the notches 61 of the carriage rails 41'. thereby seating the rollers 59 on said rail. and the carrier moved forwardly along said rails into writing position with the platen 54 so located as to receive the impression of the type faces on the type-bars 29, this forwardmovement of the carrier bringing the lugs 60 beneath the flanges 62 and thereby retaining said carrier in place on the carriage. In order to facilitate the placing ofthe carrier on the carriage the rails 41 may, if desired, be provided with outwardly flared guide members 63 (see Figs. 5 and.6) adapted to guide'the rollers 59 into position on said rails. one of said guide members 63 being provided with forwardly I and rearwardly flared guide 1 flanges 64 adapted to guide one of the lugs 60 into the corresponding notch 61. The

forward movement of'the carrier on the'car-' riage' islimited, in order properly t6 position the platen with respect to the type bars, by means of an adjustable stop screw 65 carriedby the transverse bar 43 of the carriage and adapted to engage a lug 66 (see Fig. 10) on one of the cross bars 58. Said carrier is locked in the writing position, after being brought thereinto, by means of a locking dog 67 pivoted to a bracket 68 secured to one of the rails 41 and normally held by. a spring 69 in an elevated position to engage a lug 70 (see Fig. 10) on the bottom of the carrier frame 49. said dog being depressed to.release the lug 70 and permit therearward movement and removal of the carrier by means of a lever 71 pivoted at 72 to one of the side members of the carrier frame 49 and provided wlth an operating finger piece 7 3.

Means are preferably provided for preventing the insertion of a carrier into the carriageor the removal of the same therefrom except when said carriage is in its extreme position toward the right (i. e. in a position to begin a line of writing) and also to prevent the movement of the carriage,

and'consequently the operation of the'typewriting mechanism, until the carrier-has been moved into the proper writing position.

To these ends, in the construction shown, the

following devices are provided. r

74 (Figs. 6 and 7) denotes a cam bar comprising an upwardly offset, longitudinally tapering flange on the rear carriage rail 33.

75 (see Figs. 12 and 13) denotes a downwardly projecting lug on a bracket 76 rivet ed or otherwise secured to the bottom of the 'carrier frame 49. The lug 75 is so positioned that, when the carriage is in its extreme position toward the right, it will just clear the inner end of the flange 74 when the lugs 60 areinserted in the notches 61, and

ing of the carrier to a sufficient extent to pass the lugs 60 downwardlythroughthe notches 61, or, if the carrier be already in place on carriage, will prevent rearward movement of said carrier to a sufficient extent to permit sa said notches. p

77 (Figs. 7 and 8) denotes a locking dog pivoted at 7 8 in a knob cut in the forward cross bar 42 of the carriage near one of the rails 41, said dog being adapted, when said carriage is in its extreme position towards the right,to engage a notch 79 in the rail 32, thereby locking 'saidcarriage against movement, said dog being moved into engagement with said notch by means of a spring 80. extended upper end 81 which, when said dog is in'locking engagement with the notch 7 9,

of the carrier frame 49 and a flattened end.

84 Which-is detachably seated in a slot or notch formed in the upper edge of the opposite lside member'of said frame. The arbor 82 is of less diameter than the hollow core of the reel 55 and carries at one end a hub- 85 which enters one end of said hollow core andis frictionally connected therewith by a spring 86 (see also Fig. 20) secured to said hub and bearing against the inner surface of id lugs to be freed from The dog 77 is formed with .an

said core. At the opposite end of the core 55 is a second hub' 87 having a wedge shaped key'88 which enters a nqtch in the end of the the reel by a 'collar 89 fast upon" the arbor '82 by means of av set screw 90. The

89 and hub 87 are longitudinally adjustable on the arbor 82 inorder to cooperate with reels of'difierent lengths carrying work sheet webs of different widths;

The platen 54comprises a fiat bar of any suitable composition usually employed for this purpose, said bar being mounted in a 12Q reel, said hub being held in engagement with 35 or finger piece 105.

member 91 and between which and a guide plate 95 (Figs. 6 and 7) on the carriage the webs 56 are guided to the lower guide roller 93;

96 and 97 denote upper and lower feed rollers to which the webs pass after leaving the upper guide roller 93, said rollers being preferably connected by gears 99 .(Fi 1'91) The upper feed roller 96 is journal ed inf.

{the bottom of thecarrier frame, said rod .arms 98 (see Figs. 17 and 18) pivoted at 100 to the side members of the carrier frame 49,

said arms being normally depressed to force the feed roller 96 against the feed roller 97 by means of springs 101 connected at their lower ends to the bottom of the carrier frame and at their upper ends to saddles 102 having abutment screws 103 engaging said arms 98, whereby the elfetive tension of said springs may be adjusted. The arms 98 may be raised against the tension of the springs 101 to separate the feed rollers (as shown in Fig. 18) by means of cam surfaces on a shaft 101 journalled in the side membersof the carrier frame and provided outside said frame with an operating handle 97 is journalled in the side members of the carrier frame and is provided outside said frame with operating knobs 106 (Figs. 9 and 11) and with a star wheel 107 (Fig. 1%)

4O cooperating with a roller 108 carried by a spring depressed arm 109 in order to provide the usual line positioning of the feed rollers, said roller 108 being movable out of engagement with the star wheel 107 by .45, means of a cam disc 110 rotatably mounted on the journal of the roller 96 and provided with-a finger iece 111.

The feed ro ler 97 is preferably cut away to form isolatedfeeding discs 112 cooperatingwith the roller 96 and between which project portions of a guide plate 113, whereby the webs are guided from the feed rollers out of the carrier and past the edge of a tearoff knife 114 (Figs. 9 and 21) carried by 5b the bar 51.

Referring to Fig. 11, 115 denotes a worm gearloosely mounted on the feed roller 97 and provided with ratchet teeth which cooperate with complementary ratchet teeth 1 formed on the corresponding 'gear99, said worm gear 115 being pressed toward" the "gear 99 by a spring 116, and the construction being suchthat, when the roller 97 is turned in the directionto advance the webs, the

The lower feed roller connected with one of the side members of the carrier frame for limited vertical movenient thereon, as by means of studs 120 projecting from said slide and working in slots 121 in said side member. The shaft 118 carries a series of worms which cooperate with worm gears formed on the hubs 85. 124'detes a rod disposed parallel to the shaft 118 nd guided for longitudinal movement on having at its rear enda spring cam member 125 adapted, when said rod is in its forward position to engage the flange 126 and hold the slide 119 in its elevated position with the worms 122 in mesh with the worm gears 123. At its forward end the rod 124 is provided with a pair of lugs 127 and 128 adapted to receivebetween them an arm 129 on the cam shaft 104. The construction is such that, when the finger piece 105 is operated to separate the feed rollers 96 and 97 engagement of the arm 129 with the lug 128 will move the rod 124 rearwardly into the position shown in Fig. 18. permitting'the slide 119 and shaft 118 to drop and thereby carrying the worm 122 out of engagement with the worm gears 123. When. however, the finger piece'105 is returned to its normal position, as shown in Fig. 17. engagement of the arm 129 with. the lug 127 will move the rod 124 forwardly, thereby causing the spring cam 125 to raise the slide 119 and reengage the worms 122 with the gears 123.

From the fpregoing it will be seen that when the feed roller 97 is turned by either of the knobs 106 to move the paper webs backwardly or downwardly the reels 55 will be positively actuated to wind up the amount of web thus fed backwardly by the feed rollers. but that when said feed rollers are operated .in the usual manner to advance the web. the reels will not be positively actuated but will be turned merely by the withdrawal of the web therefrom. It will also be seen that when the feed rollers are separated. for the purpose of positioning the web therebetween or otherwise. the actuating mechareel by reason of inequalities in the amount of web wound on the several reels or other wise. Y

The carbon paper or other transfer material is preferably also supplied in the form of a suitable number of continuous strips or Webs 57, said Webs being stored in the form of rolls wound on studs 130 (Figs. 9'and 10) having flattened or notched portions which are received in slots or notches 131 (see Figs. 17 and 18) in one of the side members of the carrier frame 49. Withdrawal of the transfer Webs from the rolls is yieldingly resisted, so as to apply a light tension to said webs, by means of discs 132 loosely mounted on reduced outer ends. of the studs 130 and pressed into engagement with the outerfaces of the rolls by means of springs 133 interposed between said discs and adjusting nuts on the outer ends of said studs. From the rolls the transfer web is carried about suitable guide studs or members 135, 136 and 187, thence longitudinally of the platen bar 54 between the work sheet webs 56 and trans verse to the. latter, and finally about a guide 138 (Fig. 11) at the opposite side of frame to mechanism for periodically feeding said webs a predetermined amount in .order to supply fresh portions thereof at the point where the writing takes place. Referring to Figs. 12, 15 and 16, 139 denotes a short upright shaft journalled in a bracket 140 se cured to one of the side members. of the carrier frame 149 and having fast thereon a feed roller 141. 142 denotes a cooperating feed roller journalled on an eccentric stud 148 rotatably mounted in the bracket 149 and provided with a finger piece 144 whereby said stud may be turned to-separate the feed rollers. 145 denotes a pinionloosely mounted on the shaft 139 and prov ded wlth sprin pressed pawls 146 which engage in ternal ratchet teeth in the walls of a concentrio recess formed in the upper end of the roller 141. By this construction itwill be seen that the feed roller 141-may be turned by the pinion 145 or independently thereof by the shaft, 139 which is preferably provided with a manual operating knob 147. The pinion 145 meshes with a rack 148 formed on the forward end of a link 149 connected with the adjacentside member of the carrier frame by a spring 150. The rear end of the link 149 is formed with an ear pivoted at 151'(see Figs. 12 and 13) to a lever 152 fulcrumed at 153 to the bottom of the carrier casing and 'having at its opposite end a stud 154 guided in a slot in the bracket 76 and adapted to engage the inclined edge of the cam flange 74. The construction is such that, as the carriage is moved from left to right in order to commence a new line of writing, engagement of the stud 1'54 with the cam flange 74 will rock the lever 152 on its pivot, moving the link 149 in oppositlon to the spring 150, thereby, through the rack 148, pinion 145, and pawls 146, turning the feed roller 141 and advancing the transfer a web a predetermined amount. As the carriage travels from'right to left during the writing operation the cam flange 74 permits the spring 150 to return the link 149 to its initial position, the pinion 145 at this time turning idly without moving the feed roller 141.= In order to permit the effective stroke of the lever to be varied, thereby varying the amount which the transfer web is fed at each traverse of the carriage, the pivot 153 comprises a stud which is received in aslot- 155 in said lever and 1s earned by a slide 156' adjustably connected with the backmembii 50 of the carrier frame by'a screw 157 work.- ing in a slot 158 in said frame member. It will be seen that with this construction the fulcrum of the lex er 152 may be adjusted,

thereby varying the stroke of the 1ink149. b

As is common practlce in typewriter construction, each type bar 29 is provided with two type faces 159 and 160 (Fig. 21) which are brought alternatively into printing position by operation 'of the shift keys 27. In order to avoid all possibility of a double impression of these two type faces, due to the flat surface of the platen 54, as also to hold the' webs 56 (which are slightly curved by reason of their having been rolled on the reels 55) in flat position against the impression surface of the platen, the followmg devices are preferably employed. 161

' (Figs. 10, 11, 14 and 21) denotes plates having projecting lugs 162 which are received in apertures in the brackets 92. The plates 161 are connected by spaced, parallel'guard strips 163 (see particularly Figs. 11 and' 22) 7 preferably composed of a slightly elastic tex-' tile material, the elasticity. of said strips holding the plates 161 with their lugs 162 in engagement with the apertures in the brackets 92, and said pla'tes holding said strips stretched across the'webs' 56 in such a manner, as to hold the latter tightly against the'platen 54. The'spacing of. the strips 163 corresponds approximately with" the .width of a single line of writing, thereby making it impossible to obtain a double impression from the typefaces 159 and 160. In order conveniently to ,store a suitable number of carriers 48 with their respectivedifferent forms of worksheets and to render any of said carries readily accessible for the purpose ofintroduction into the typewriting machine, the following means are preferably employed. reference being had to Figs. 1 to. 4.

164 denotes a cabinet preferably pro vided at'its forward side with a shelf 165 for supporting the typewriter 25. Within.

the cabinet 164 is a pair of vertically disposed uprights 166 constituting guides for a carrier holder or elevator comprisinguprights 167, cross members 168, and braces 169. Said elevator is movable upwardly through an opening in the top of the casing 164, which opening is closed, when'the elevator is depressed, by a cover 170 carried by the upper ends of the uprights 167. 171

For raising and lowering the elevator there is provided a hand lever 177 mounted on y a shaft 178 journalled in the frame of the cabinet and having fast thereon abail 179 connected by a link 180 with a bracket 181 secured to one ofthe elevator cross members 168. i v

Adjacent their upper vends the elevator uprights 167 carry a plurality of pairs or horizontally disposed rails 182 connected at their forward ends by upright bars 202, said rails being vertically spaced a sufficient distance to recelve between them the carriers 48, so as to constitute compartments for said carriers and horizontally spaced to correspond with the horizontal spacing oi: the carrier rails 41 of the typewriter carriage. Each'pair of rails 182 is adapted to receive and support one of the carriers 148, inward movement of said carriers along said rails being limited by stops 183 which engage the rear carrier rollers 59. The construction is alinement with the rails 41, one of the elevator uprights 167 is formed with a series of beveled notches 184 adapted to receive the beveled end of a positioning dog 185 pivoted to.one of the guides 166 and controlled by a spring 186 which tends to force said dog into engagement with said notches.

The notches 184 are so located that when any is engaged by the dog 185 one of the pairs of rails 182 will be in accurate alinement with the rails 41, the beveled shape of said notches and dog causing the elevator to .be automatically moved into this position when manually brought nearly thereinto. For releasing the dog 185 there is provide'dfa treadle 187 in the form of 'a bell crank' lever pivoted to the cabinet frame adjacent the bottom of the latter and connected by a chain 188 with a bell crank lever 189 also pivoted to the cabinet frame and connected by a chain 190 with a bell crank lever 191 pivoted to one of theuprights 166' and connected by a chain 192 with the dog 185.

For locking the several carriers 48 against accidental displacement from their respective rails 182 except when said rails are in alinement with the rails 41, there are provided-spring actuated locking dogs 193 (Fig.

1) respectively adapted, when in normal position, to engage one of the lugs '60 of each ment with the lug60, so as to permit the for- Ward movement of the corresponding carrier 48 from the rails 182 to the rails 41.

It is, of course, important that the elevator be not moved when any carrier 48 has been moved partly but not entirely out of said elevator so as to be supported partly by the rails 182 and partly by the rails 41. In order to prevent such accidental move ment of the elevator the following'mechanism is employed. 197 (Figs. 2 and 4) denotes a dog pivoted to one of the elevator uprights 167 and adapted to engage any one of a series of notches 198 in the corresponding upright 166 when any pair of rails 182' is in alinement with the rails 41, thereby locking the elevator against vertical movement. The dog 197 is connected by a link 199 with a series of levers 200 pivoted to one of theelevator uprights 167 and having at-their "forward ends pro jections 201 adapted for engagement by the bottoms of the carrier frames 49 as the carriers are moved into and out of the elevator.

Normally the projections 201 extend slightly;

of the notches 198, this being the condition when all of the carriers 48 in the elevator are moved fully back therein, as shown in Fig. 1 and at the top in Fig. 4. When, however, any carrier is moved outwardly from the rails 182 upon the rails 41, engagement thereof with the projection .201 on the correspondin lever 200 will cause the latter to raise the link 199 and move the dog 197 into lockingengagement with one of the notches 198 until the carrier has been moved en.- tirely out of the elevator and out of engagement-with said lever. When-the carrier is returned to the elevator the projection 201 is again engaged an the lever 200 held depressed, thereby again locking the elevator until the carrier has been fully returned.

operator will firstdepress the treadle, there,-

by removing the positioning dog 185, and will then operate the lever 177 to bring the carrier 48 containing the desired form into a position opposite the typewriter carriage,

which at this time has been moved to its extreme position toward the right. The treadle .187 is then released permitting the positioning dog 185 to bring the rails 182 into accurate alinement with the rails 41. -At the same time, the cam plate 196 will have depressed the proper locking dog 193 to release the desired carrier. The handle 53 of said carrier is then grasped and the carrier drawn forwardly fromthe elevator rails 182 I upon the carriage rails 41, until the lug 66 thereon engages the stop screw 65, thereby bringing said carrier to the writing position in which it is locked by the dog 67. The knobs 106 are then turned to bring the blank spaces successively opposite the platen, and 0 the desired data filled in, in the usual man- 'ner, by-the "typewriter, the successive return movements of the carriage operating through the cam flange 74, lever 152 and link 149 to- .feed the transfer webs 57 forwardly a predetermined amount for each line that-is written. When a set of forms has been completely filled out, the, knob 106 is further turned to bring the bottom'edges of said blanks opposite the edge of the tear-oil knife 40 114, whereupon the completed documents may be detached, leaving the webs in position to commence the immediate preparation of'another document of the 'same form. If another form is next required, the finger piece 73 is manipulated to release the dog 67 (the typewriter carriage having been re turned to itsinitial position farthest to the right) and the carrier 48 moved backward] y upon the elevator rails 182; Thereafter the 50v treadle 187 is again depressed to release the positioning dog 185 and the lever 177 again manipulated to bring another carrier 48 in position opposite the typewriteigthese op erations being repeated from time to time in accordance with the requirements.

From the foregoing it will be seen that an assembled set of any desired forms can at will be easily and quickly brought into position to be filled out by the typewriter with out the usual delays, the various safety or "lockingdevices' above described making it.

virtually impossible to operate the mechanis'm in .an improper manner, thereby relieving the operator'of all necessity of exercising special careiin Order to prevent such mechanism, of a carrier comprisin in com- ;improper operation and eliminating the necessity of special skill in using the apparatus.

Having thus described my invention 1' claimi 1. The combination with the printing devices of a typewriterhaving a reciprocating mechanism, of a carrier comprisin in combination as aunit, aplaten, work s eets and transfer material; and means to removably connect said carrier unit with said reciproeating mechanism. p 1" 2, he combination with the printing devices of a typewriter having a recipr0cating bination as a unit, a platen, means or carrying work sheets and means for carrying transfer material; and means to removahly connect said carrier unit with said reciprocating mechanism.

3. The combination with the printing devices of a typewriter having a'reciprocating mechanism, of a carrier comprising in combination as a unit, a platen,- work sheets with means for positioning the same upon said LO, platen, and transfer material with means for inter-posing the same between said .work

sheets when the latter are opposite said platen; and means to removably connect said carrier unit a-nism. 1

4. The combination with the printing devices of a typewriter having a reciprocating mechanism, of a carrier comprising in combination as a unit, a platen, work sheets with with said reciprocating mechdirection of the feed of the latter when said .work sheets are opposite said platen; and

means to removably connect said carrier unit with said reciprocating mechanism.

5. The combinatio with the printing devices of atypewriter aving a reciprocating mechanism, of acarrier comprising in combination asa unit, a platen, means for carry ing a supply of worksheets and positioning the same upon said platen, means for carrying a supply of transfer material and interposing' the same between said work sheets when the latter are opposite" said platen; and means to removably connect said carrier unit with said reciprocating mechanism.

6. The combination with the printing devices of a typewriter having a reciprocating mechanism, of a carrier comprising in corn bination as a unit, a platen, work sheets, and transfer "material; and niea'ns to removably" connect said carrier unit with said recipro eating mechanism andall'ow it 'to'be discon nected therefrom 'whileth'e reciprocating mechanism remains intact. v

7. The combination with the printing"devices of a typewriter having a reciprocating 100 means' for positioning the same upon said transfer material; and means to removably connect said carrier unit with said reciproeating mechanism and allow it to be dis-,

connected therefrom while the reciprocating.

- mechanism remains intact.

8. The combination with the printing devices ofa typewriter having a reciprocating mechanism, of a carrier comprising in combination as a unit, a platen, work sheets with means for positioning the same upon said platen, and transfer material with means for interposing the same between said work sheets when the latter are opposite said platen; and means to removably connect said carrier unit with said reciprocating mechanism and allow it to be disconnected therefrom while the reciprocating mechanism remains intact.

9. The combination with the printing devices of a typewriter having a reciprocating mechanism, of a carrier comprising in combination as .a unit, a platen, work sheets with means for positioning the same upon said platen, and one or more transfer webs with means for feeding the same between said work sheets in a direction transverse to the direct-ion of the feed of the latter when said worksheets are opposite said platen; and means to removably connect said carrier unit with said reciprocating mechanism and allow it to be disconnected therefrom while the reciprocating mechanism remains intact.

10. The combination with the printing devices of a typewriter having a reciprocating mechanism, of a carrier comprising in comblnation as a unit, a platen, means for carrying a supply of work sheets and positioning the same upon said platen, means for carrying a supply of transfer material and interposing the same between said worlr' sheets when the latter are opposite said platen; and means to removably connect said carrier unit with said reciprocating mechanism and allow it to be disconnected therefrom while the reciprocating mechanism remains intact.

11. The combination with the printing devices of a typewriter having a carriage, of a carrier unit adapted to engage and disengagesaid carriage, and means on said carrier for carrying in combination as a unit, a platen, ork sheets, and transfer material.

said work sheets when the latter are opposite said platen.

13. The combination with the printing devices of a typewriter having a carriage, of a carrier unit adapted to engage and disengage said carriage, and means on said carrier for carrying, in combination as a unit, a platen, worksheets with means for posi: tioning the same upon said. platen, and one or more transfer webs with means for feeding the same between said work sheets in a direction transverse to the direction of the feed of the latter when said work sheets are opposite said platen. v

14. The combination with the printing devices of a typewriter having a carriage, of a carrier unit adapted to engage and disengage said carriage, means on said carrier for carrying, in combination as a unit, a platen, means for carrying a supply of work sheets and positioning the same upon said platen, and means for carrying a supply of transfer material and interposing the same between said work sheets when the latter are opposite. said platen.

15. The combination with the rinting devices of a typewriter of a carrier adapted for attachment to and removal from a writing machine as a unit and comprising, in combination, a platen, a' plurality of reels each adapted to hold a series of work sheets in the form of a continuous web, feed rollers for drawing said webs simultaneously from all of said reels, driving connections between said feed rollers and reels, and means for carrying a supply of transfer material and interposing the same between said webs.

16. The combination with the printing de vices of a typewriter of a carrier adapted for attachment to and removalfrom a writing machine as a unit and comp-rising, in combination, a platen, a plurality of reels each adapted to hold a series of work sheets in the form of a continuous web, feed rollers operable in one direction for drawing said webs simultaneously from all of said reels, driving connections between said feed rollers and reels operable to turn said reels when said feed rollers are operated in the opposite direction, and means for carrying a supply of transfer material and interposing the same between said webs.

17 In a manifolding attaehment'for writing machines, a carrier adapted for attachment to and removal from a writing machine and comprising, in combination, a plurality of reels each adapted to hold a series of work sheetsinthe form of a continuous web, feed roller-s for; drawing said "webs simultaneously from all of said reelspmeans for actuating said reels,'fapair of cooperating ratchet clutch members connected-respec tiv ely with one-of said feed rollers and-with said reel a1; iiatiiigjmeans, and means for and comprising,

' rollers for drawing said carrying a supply of transfer material and I lnterposing the same between said webs.

18. In amanifolding attachment for writing machines, a carrier adapted for attachment to and.removal from a writing'machine sheets in the form of a continuous web, feed webs simultaneously from all of said reels, meansfor carryin a 1 ,pply of'transfermaterial and inter-posing the same between said webs, a wormgear carrled by. ,eachiof sa1d reels, and a e'ratively connected withonejof said feed rollers and having a series of worms meshing with said worm gears respectively.

19. In a manifolding attachment for writ ing machines, a carrier adapted for attachment' to and removal from a writing machine and comprising, in combination, a plurality of reels each adapted to hold a-series of work sheets in the form of a continuous web, feed rollers for drawing said webs simultaneously from all of said reels, means for carrying a supply of transfer material and'interposing the same between said webs,

' gears connecting said feed rollers, the gear clutch face cooperating with said firston one of said rollers having a ratchet clutch face, a worm gear-rotatablv-mounted on said last named feed roller and having. a ratchet named clutch face, a spring for forcing'said clutch faces into engagement, worm gears carried by the several reels, and a shaft having a worm meshing with the worm gear .on said feed roller and a series of worms meshing with the worm rs carried by the respectlve reels.

20. In a manifolding attachment for'writing machines, a carrier adapted for attachment to and removal from a'writing machine as a'unit and comprising, in combination, a platen, a plurality of reels each adapted to .hold a series of work sheets in the form of a; continuous web, feed rollers for drawing said webssimultaneously from all.

' of said .reels, means for carrying a supply of transfer material and interposing the same between said webs, driving connections between said feed rollers and reels, and means for separating said feed rollers and for simultaneously disconnecting said driving connections.

2L In a manifolding attachment for writing machines, a carrier adapted for attach-- ment to and removal from a writing machine and comprising, in combination, a plurality of reels each adapted to hold a of work sheets in the form of a continuous web, feed rollers for drawing said webs simultaneously from all of said reels, means for carrying a supply of transfer. material and interposingthe same between saidwebs, a shaft operatively connected with one of said'feed rollers and with each of said reels,

, in combination, a plurality of reels each adapted to hold a series of work shaft opmovable .nation, a platen,

series a support'for said shaft said shaft into and out of operative engagement with said reels, a longitudinall movable rod having a spring cam adapte to engage and move sa1d support, a cam shaft for separating said feed rollers, and an arm movable to. carry on said shaft adapted to engage and: move. said rod when said shaft is turned in either direction.

22. In a manifolding attachment for writing machines, agarrier adapted for-attach- .to carry saidworms into and out of engagement with sa1d lworm gears, a longitudinally rod having a spring cam adapted to engage and move said support, a cam shaft for separating said feed rollers, and an arm on said shaft adapted to engage and move said rod when said shaft is turned in either direction.

supply of transfer and interposing the same-between" sa1d Webs,

23. In a manifolding attachment for writ- I ing machines, a carrler adapted fol-attach- ,ment to and removal from awriting ma.- chine as a unit and comprising, in combina-. tion, a platen, a plurality of reels each adapted to hold a series of work sheets in "the form of a continuous web, feed rollers for drawing said webs simultaneously from all of said reels,

means for, carrying a supply of transfer material and 'interposing' the' i .same between said webs, and means opera tivel connected with said feed rollers and yiel ingly connected with said reels respec tively for rotating said reels.-

24. In a manifolding attachment for writing machines, a carrier-adapted for attachment to and removal froma writing machine as a unit and comprising, in combia plurality of reels each adapted to hold carrying a supply of transfer materi and mterposing the samebetween said web feed rollers operable in'one direction for drawing said .web simultaneously from all-of said reels, and means operative y, connected with said feed rollers and yieldingly connected with said'reels respectively for rotating said a series. of work ,isheets in I the'form of a contmuous web, means for reels when said feed rollers are operated in the opposite direction.

25. .Ina manifolding attachment for writ mg mach1nes,a carrier adapted for attachment to and removal'from a writing machine and comprising, in combination, a plurallty of reels each adapted to hold a series of work sheets'in the formof a continuous web, feed rollers for drawing said webs simultaneously from all of said reels, means for carrying a supply of transfer material and interposing the same between said webs, Worm gears having hubs frictionally 'connected with said reels respectively, and a shaft operatively connected with one of said feed rollers and having worms meshing with the several worm gears. c

26. In awriting apparatus, the combination with a typewriter having a transversely movable carriage, of a carrleradapted for attachment to and removal from said carriage, a. platen carried by the carrier, means I on said carrier for'carryin'ga supply of work sheets and for presenting the same. in writing positionrwhen said carrier 18' at tached to said carriage, means on said car- 2-7, .In a writing apparatus, the combination with a typewriter havinga transversely movable carriage and astationary, longitudinally inclined cam member disposed substantially parallel to the direction of movement of said carriage, of a carrier adapted for attachment to and removal from said carriage, means on said carrier for carrying a supply of work sheets and for presenting the same in writing position when said carrier is attached to said carriage, means on said carrier for feeding one or more continuous transfer webs between said work sheets, and means cooperating 'with said cam member for operating said feeding means.

28. In a writing apparatus, the combination with a typewriter having a transversely movable carriage and a stationary, longitudinally inclined cam member disposed substantially. parallel tothe direction of move ment of said carriage, of av carrier adapted for attachment to and removal from said" carriage, means on said carrier fpr carrying a supply of work sheets andfor; presenting the same in writing position" when said carrier is attached to said carriage, and means on said carrier for feeding one or more con-' tinuous transfer Webs between said Work sheets said feedino' means com o risin a )air of feed rollers, a pinion having a pawl and ratchet connection g 'with one of said rollers, a link having a rack cooperating with said pinion, and a leverpivoted to said link. and having. a stud engaging said cam member.

29. In a writing apparatus, the combination with a typewriterhaving a transversely movable carria e and a stationary, longitudinally inclinec cam memberdisposed substantially parallel to the direction of movement of said carriage, of a carrier adapted for attachment to and removal from said carriage, means on said carrier for carrying a supply of work sheets and'for presenting the same'in writing position when said carrier is attached to said carriage, and means, on said carrier for feeding one or more con tinuous transfer webs between said work sheets, said feeding means comprising. a pair of feed rollers, a pinion having a pawl and ratchet connection with'one of said rollers,

a link havinga rack cooperating with said pinion, a lever pivoted to said link and having a stud engaging said cam member, a stud on which saidleveris fulcrumed, said lever having a slot to receive said fulcrum stud, and a slide adjustably secured to said carrier and by which said fulcrum stud is carried. c. v

30. In a manifoldingr'attachment for writing machines, a carrieradapted for attachment to and removal from a waiting ma-' chine as a unit and comprising, in c0mbination, a platen, means for carryingasupply of work sheets and for presenting the same in writing position when said carrier is attached to saidwritingmachine, a stud on said carrier for supporting a roll of continuous transfer web, means for feeding said web between said work sheetswhen the'latter are in writingposition, a tension disc on said stud, and a spring for. pressing said disc against said roll of transfer web.

31.111 a writing apparatus, the combination with a typewriter having a carriage, of. a carrier adapted for attachment and removal from said carriage, meansf-on said carrier for carrying a supply of work sheets and for presenting said work sheets in writing position when said carrier is attached to said carriage, aiixed bar disposed parallel to the direction of movement of said carriage, and a lug on said carrier adapted when said carriage is in one predetermined positionto clear said bar and permit the at; tachment of said carrier tosaid carriagebut to engage said bar and prevent such attachment when said carriage, is in any other posi-. tion.

32. In a writing apparatus, the coinbina- 115,

tion with a typewriter having a transversely movable carriage and a stationary, lon tudinally inclined cam member disposed su stantially parallel to the directionof move ment of said carriage, of a carrier adapted 1'20 for attachment to and removal from said carriage, means on? said carrier for carrying a supply of work sheets and for presenting the same in writing'position when said carrier is attached to said carriage, means on said carrier for feeding'one or more continuous transfer webs between said work sheets, means cooperating with said cam v member for operating said feeding means,

and a lug on said carrier adapted whensaid I i clear said cam member and carriage is inone predetermined position to permit the attachment of said carrier to said carriage but to engage said cam member and prevent such attachment when said carriage is in any other ositionI v n a writing apparatus, the combination with-a"typewriterhaving a carriage,iof a carrier adapted for'attachment to and re moval from said carriage, means for retainmoval from said carriage, means for guidmg sald'carr er into position onsald carriage, means on said carrier for carrying a supply f of'worksheets and for presenting the vsame in writing position when said carrier is attachedto-said carriage, and means on said carrierior 'carrying a supply of vtransfer material and interposmg the same between said work sheets when'the latter are in writing position.

34. In a writing apparatus, the combination with a typewriter having a carriage, of

a carrier adapted for attachment to' and reing said carrier in position on said carriage,

meanson said carrier for carrying .a supply of work sheets and for presenting the same in writing position when said carrier is attached to sa d carriage, and means on said carrier for carrying a supply of transfer material and interposing the same between said work sheets when the latter are in writing position. 35. In a writing, apparatus, the combination with a typewriter having type bars and a transversely movable carriage provided with a pair of parallel flanged rails disposed transverse to the direction of movement of said carriage, of a carrier having rollers to run on said rails and lutgs'to engage the flanges of said rails and retain said carrier in position thereon, and means on said carrier for carrying a supply of work sheets and transfer material and presenting the same in assembled relationship to the action of said type bars.

36. In a writing apparatus, the combination with a typewriter having type bars and atransversely movable carriage provided with a pair of parallel flanged rails same to the action of saidtype bars, and a said carriage is in any other position.

lug on said carrier adapted when said oarriage is in one predetermined position to clear said fixed bar and permit movement of said carrier on said rails but to engage said bar and preventsuch movement when 37.' In a writing apparatus, the-. combination with a typewriter having a carriage, of alcarrier adapted for attachment to and re moval from said carriage means on said carrier for carrying a supply of work sheets and presenting the same to the wrltinjj mechanism :of said typewriter, andmeam for preventing the :removal; of said carrier when said calfriage isat'the limit of Its movement n one I from said carriage except direction. i '38, In-a writing'apparatus, the combination with a typewriter having a carriage,

of a carrier adapted for attachment to and ren' oval from said carriage, means o'nfsaid carrier for carryinga supply of worksheets and presenting the same to the writing mechanism of rier to said carriage .or its removal therefrom except when said carriage is at the limit of its movement in one digection.

39. In a writing apparatus, the combinasaid typewriter, and means I for preventing the attachment of sald cartion with; a t'pewriter having a carriage,'of

acarrier a apted for attachment to and removal from said carriage and movable thereon into and out of writing position,'

means on said carrier for carrying asupply of work sheets and presenting the same H to the writing mechanism of said typewriter. when said carrier is in writing position, and means for positioning saidcah rier in writing position. 40. In a writing apparatus, the combination with a typewriter having a carriage provided with a bar disposed parallel'to the direction of movement, of said; carriage and a stop screw carried by said bar, oiia carrier movable on said carriage into and out of writing position, means on said'car'r rier for carrying a supply of work sheets and presenting \the same to the writing mechanism of'said. typewriter when said carrier is in writing position, and alu'g-on said' carrier adapted to engage saidxstop screw and position said carrier on said car: riage.

v 41. In a wr tingapparatus, the comb1nation with a typewriter having ajcarriage,

of a carrier movable on said carriage'into and OlliJ OfWIltlIlg position, means on said carrier for carryinga supply oflwork sheets and presenting the same to the writing mechanism of said typewriter when said'carrier is in writing position, and means for looking said carrier in writing position on said carriage;

42. In a writing apparatus, the combina tion with a typewriter having a carriage, I

of a carrier movable on said carriage into and out of writing position, means on said carrier for carrying a supply of work sheets and presenting the same to the writing,

I mechanism of said typewriter when said 1 carrier 1s in writing position,- and a pivoted dogon said carriage adapted to engage said carrier and lock the same in writing posi- 43. In a writing apparatus, the combina-. t'ion with a typewriter having a carriage,- of a carrier movable on said carriage into and out of" writing position, means on said carrier for carrying a supply ofwork sheets and presentingthe same to the writing mechanism of said typewriter when said carrier is in writing position, and means for locking said carriage against movement until said carrier is moved into writing position. I

5 4A; In a writing apparatus, the combination with atypewriter having a carriage, of a'carrier adapted for attachment to and removal from said carriage and movable thereon into and out of writing position,

means on said carrier for carrying a supply of work sheets and presenting the same tothe writing mechanismbf said-typewriter when said carrier is in writing'position, means for preventing the attachment of said carrier j tosaid carriage except when said carriage is at the limit of its movement in one direction, and means for-locking said carriage against movement until said carrier is moved into writing position. 45. In awriting apparatus, the combination with a typewriter-having a carriage and 'a notched rail on which said carriage runs, of a carrier movable on said carriage into and. out of writing -position,means on said as carrier for carryinga' supply of work sheets and presenting the same to the Writing mechanism of 'said typewriter when said carrier is in writing; position, and a dog on said carriage adapted to engage the notch 40 insaid rail and lock saidrarriage against movement, said dog being engaged and re-' mechanism of said typewriter, a holder. for.

said carriers movable to bring-any desired 106 changeable carriers each adapted for attach.- ment to said carriage and each provided with'means for carrying a supply ofwork sheets and presenting the same tothe writ ing mechanism of said typewriter, and a 70 holder for said carriers movable :to bring any desired carrierv into position, adjacent said typewriter carriage. 5 19. The combination with a, typewriter, having a carriage, of a plurality of'inter- 7! ch: ngeable carriers each adapted for attachment to said carriage;and each'provided with means for carrying a suppl of work sheets and presenting the same to the writing mechanism of said typewriter, a holder forgo said carriers movable to bring any desired carrier into position adjacentsai'd carriage, and means for locking said carriage against movement until a carrier has been'brought into writing position'thereomj 50. The combination with a typewriter: having a carriage, ofa plurality" of inter-} changeable carriers each adaptedforattach ment to 'saidi carriage and each providedjf Withineans for carrying a supply of work 9'0 sheets and presentihg the same to the writing mechan sm, of said typewriter, a holder for; saidi eerriers movable to bring any desiredca rrier into position adjacent said type; Q writer carriage and means for accurately 95;, positioning said holder with-respect to carnage; I f I,

51. The combination with a typewriter having a carriage, ofaplurality of inter changeable carriers each, adapted for attach- 100 ment to said carriagef ra nd each provided j with means for carrying a" supply of work sheets and presenting the same to the writing carrler into position adjacent said carriage,

leased by'said carrier when the latter is j and means for locking said carriers in said movedinto writing position, y M 46. Ina writing apparatus, the combmaf tion with a typewriter havlng a'shift key;.

and type bars each provided with a plul rality of typefaces rendered alternatively;

operative by manlpulation of said shift key,1

lolder and for unlocking each carrier s it" Brought into. position adjacent said ari I a 110' L52 QThe combination with a typewriter haying a carriage,,of a plurality of inter rhangeable carriers each adapted for attachof a-fiat platen torec v p s l ment to said carriage and each provided said type-bars, and a pair'of guardstrips disposed adjacent said platen at opposite sides of the writing line respectively.

47. In a typewriting mechanism, the combination with typebars and a platen to re- 55 ceive the impression of said type bars, of brackets for supporting the ends of said platen, said brackets being provided with apertures, a pair of plates disposed at the outer sides of said brackets and having lugs engaging said apertures, and a'pair of parallel elastic guard strips connecting said plate and supported thereby in proximity to said platen.

4:8; The combination with a typewriter having a carriage, ot' a plurality of" interwith means for carrying a suppl of work sheets and presenting the same to t e writingv mechanism of said typewriter, a holder for said carriers movable to bring any desired carrier into position adjacent said typewriter carriage, a plurality of dogs (in said I holder for locking theseveral carriers therein, and a fixed cam engaged by said dogs successively as said holder is moved to unv lock each carrier as it is brought opposite said carriage. '125 53. The combination with a typewriter having a carriage, of a plurality of inter- I changeable carriers each adapted for attachment to said carriage and each provided with means for carrying a supply of work sheets 130' and presenting the same to the Writing mechanismof'said typewriter, a holder ,for

movement when any carrier has been partly but not completely removed therefrom.

54. The combination with a typewriter having a carriage, of a plurality of interchangeable carriers ea'chadapted for attachmentto said carriage and each provided with meansfor carrying a supply of work sheets and presenting the same to the writing mechanism of said typewriter, a holder for said carriers movable to bring any desired sheets and presentingthe same to the 'writcarrier into position adjacent said carriage, means for locking sald holder and for unlocking each carrier as it is brought into position adjacent said carriage, and means for locking said holder against movement when any carrier has been partly but not completely removed therefrom.

55. The combination with a typewriter having a carriage, of a plurality of inter-- changeable carriers, each adapted for attachment to said carriage and each provided with means for-carrying a supply of work sheets to the writing mechanism of said typewriter, a holder for said carriers movable to bring any desired carrier into position adjacent said carriage,

means for locking said carriers in said holder and for unlocking each carrier as it is brought into position adjacent said carriage, means for locking said holder agalnst move ment when any carrier has been partly but not. completely removed therefrom, and

means for locking said carriage againstmovement until a carrier has been brought into Writing position thereon.

56. The combination with a typewriter having a'carriage, of a plurality of interchangeable carriers each adapted for attach- ;ment to said carriage and each provided l with means for carrying'a supply of work sheets and presenting the same to writing mechanism of said typewriter, a holder for Said carriers, movable to bring any desired carrier into position adjacent said carriage, a guide for said holder provided with notches,a dog on said holder adapted to engage said notches and lock said holder against movement, a series ofievers disposed respectively with their ends in the paths of movement of the several carriers during the movement of the latter into and out of said holder, and a link connecting the several levers with said dog, whereby when any car-.

rier has been partly but not completely removed from said holder said dog will be caused to engage one of said notches and lock said holder against movement.

57. The combination with a typewriter having a carr1age,of a cabinet having means carriers in said for supporting said typewriter, a pliirality of interchangeable carriers each adapted for attachment-t0 said carriage and each provided with means for carrying a'fsupply of work sheets and presenting the same to the writing mechanism of said typewriter, and a holder for said carrier's movable into and out of said cabinet to bring any desired car rier into position adjacent said typewriter carriage,

58. he combination with a typewriter having a carriage, of a plurality of interchangeable carriers each adapted for attachment to said carriage and each provided with means for carr mg a supply of work mg mechanism of said typewriter, and an elevator having compartments to receivethe several carriers, said elevator being .Ver-

tically movable to bring any desired carrier into position adjacent said typewriter carr age. 1

59. The combination with a cabinet having an opening in its top and atypewriter supported by said cabinet and havin a carriage, of a plurality of interchangea e carriers each adapted for attachment to said carriageand each provided with means for.

rier into position adjacent said typewriter carrlage.

60. The combination with a cabinet having an opening in its top anda typewriter supported by said cabinet and having a carriage, of a plurality of interchangeable carriers each adapted for attachment to said carriage and each provided with means for carrying a supply of work sheets and presenting the same-to the writing mechanism of said typewriter, of an elevator received within said cabinet and movable through said opening, saidelevator having a plurality of. compartments for said carriers reraising and lowering said elevator to bring plurality of interchangeable carriers each provided with means for carrying a supply of work sheets and each movable on said rails into and out'of Writing position in spectively, a hand 'lever and connections for 

